Hygrometric governor for railway-heads



(No Model.) 3 Shee'ts-Shet 1.

'G. A. AYBRS.

'HY'GROMRTRIG GOVERNOR POR RAILWAY HEADS.

No. 278,488. Patnted MayRQ, 1888.

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HGROMBTRIQ GOVERNUR PoR RAILWAY HEADS. No. 278,488. l Patented May29,1888.

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(No Model.) 3 sheets-#sheet s.

` G. A-.AYERS- HYGROMB-TRIG GOVERNOR POR' RAILWAY HEADS.4 No. 278,488. lPatented May 29.1883.

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UNI-TED STATES PATENT OFFICE.

GEORGIIA, AYERS,"()F HOLYOKE, MASSACHUSETTS.

HYGROMETRIC `GOVERNOR l-'OR RAILWAY-HEADS.

SPECIFICATION forming party of Letters Patent No. 278,488, dated May 29,1883.

Application filed September 4, 1882. (No model.)

To all 'whom tt may concern y Be itknown that 1GE0RGE A. AYERs,-acitizen of the United States, residing at Holyoke, in the countyofHampden and-State of Massachusetts, have invented new and nsefulImprovements in Hy'grometric Governors for Railway-Heads,` ot' which thefollowing is a specification. i

This invention relatesto trumpet-governors for railway-heads; anditconsistsin the combination, with an ordinary railway or drawing V headfor reducing and drawing cotton-slivers,

ot' hygrometric trumpet-governor, the object being to so regulate thevibratory movements of the trumpet through which the sliver passes onsaid machines thatV said movements shall not occur in consequence ofmore-or less moisture in the atmosphere, whereby the resistance y whichthe aperturethrough the trumpet opposes to the passage of' said sliverthrough it `is varied, but that said vibratory movements of' thetrumpet-lever, whereby the drawing of said sliver is varied, shall beinduced only by actual variations in the weight ot' the sliver beingdrawn and delivered by the machine.

In the drawings forming part of thisspecitication, Figure lis a sideelevation of a hygrometric trumpet-governor embodying my in vention,andshowing a section of the table ofthe machine to which it is applied.Fig. II is a side elevation of an ordinary drawing-head, partly insection7 showing the sliver-cans on opposite sides thereof, andhavingsaid governor applied thereto. Fig. VIII is a detail view of partsof said governor and the trumpet-lever. Fig. IV is a front elevation ofa portion of said machine and said governor.

Fig. V is a detail view of parts of the latter.

In the drawings, I) indicates an ordinary drawing-head. B is the tableof the machine. c isthe trumpet. y is the trumpet-lever. :v is thetrumpet-shaft. w is an'arm on shaft x. t is a connecting-rod. s is aweight-frame. o is a connecting-rod. n isa pivot-nut. his a pivotedlever. j c is a connecting-rod. a c are hygrometric posts. c c are caps,and c c are sockets, to said posts. `b is a post-base. del are metallicstraps on one side of posts a, secured tolsaid capsand sockets. m is aweight, movable on said frame s. f is a lever-stand.

i Like letters refer to like parts in the several figures.

shaft .fr is connected, as usual, by the rod t. with the ordinarybelt-adjusting devices, which govern the position ot' the belt 7c on thecone-pulleys J, as and for the purpose well understood by those skilledin the art. Said trumpet is secured to the upper end of a lever, y, andthe latter to the horizontal shaft x, which is hung .i'n suitablebearings on the front ot' the machine D, so that the vibratorymovemen-ts ot' said trumpet as the sliver passes through it canse thearm fw to vibrate vertically, and through its connection with saidbelt-adjust- ,ing devices by the rod t to actuate the latter, wherebythe drawing-rolls shall be made to rotate at such speeds as will secure,as nearly as practicable, a sliver ot' uniform weight. The size of theopening in said trumpet is such as 'to permit a sliver of a certain bulkand weight per yard to pass through it with a certain amount ofresistance, and it is customary to provide said arm w with a movableweight,`

a point thereon as will counterbalance said resistance, and when theproper weigbtot'sliver is passing prevent such a degree ot' vibration ofsaid arm as will cause any increase or diminution ot the amount ofcotton contained in the drawn sliver.

After having started the machine under the above-named conditions ofadjustment, it will operate fairly well until there comes a change inthe humidity ofthe atmosphere. It' the lat- SSS ter becomes drier, thebulk ot' the sliver in-l creases, and it draws the trumpet over towardthefront rolls ot' the machine, swinging the arm fw upward, andoperating to solshift belt K as to vary the amount of cotton drawn intothe sliver when no such variation is demanded to keep its weight to thestandard; and if the atmosphere becomes more humid the bulk otA thesliver decreases, occasioning a contrary effect upon said trumpet andits connecting devices, and resulting also in a variation, in a reversesense from the above, in the amount of cotton in the sliver.

The within-described improvements provide IOO lzo

a remedy for the aforesaid variations in the weight of said sliver byproviding novel devices for moving a counterbalance-weight,m, (which isadapted to slide on a frame, s, attached to the arm 20,) which areactuated by the variations ot' the humidity of the atmosphere, so thatwhen by dryness the sliver resistance in the trumpet is greater saidWeight is moved toward the end of arm w, and when it is less, by reasonof greater humidity, said weight is moved in the opposite direction.

rllheat'oresaid hygrometric governor consists of one or more posts, a,which are made from soft wood or other suitable material which 'iscapable ot' action by the increase or decrease of moisture in theatmosphere.` Said posts are in the form ot' wooden strips cut from asuitable piece transversely to the grain thereof, as illustrated in Fig.'1, and the strip so cutis secured against end motion by having itsupper end covered with a cap, c', and its lower end f enter a socket con a suitable base b a metallic strap, d, being secured to said cap andsocket, and covering one side ot' said post. Any other material thanmetal may be substituted for that inl said strap d, which is flexible,has sufficienttensile strength, and is unaffected by more or lesshumidityin the atmosphere. Two ot' said posts et are shown in thedrawings connected to act together; but one only is re.

. quired, except in cases where the dynamic force of one might beinadequate for the purpose. Said posts are secured in said sockets c onthe base b, and the latter is secured on the table B of the machine D. Alever-stand, j', is likewise secured on said table, and is provided witha slot, A lever, h, is pivoted to stand j' by abolt, t2,which passesthrough said slot and through a slot Iin'said lever, whereby saidpivot-bolt may be moved to different positions relative to the upper endof lever h.

A connecting-rod, e, is pivotally connected to the caps c on posts a andto the upper end of lever 7L. The lower end of lever h is pivoted toasleeve on a nut, n, and the latter is located on the screwed end ofaconnectingrod, o, whose opposite end is pivoted to one end of a weightor counter-balance, m. A weightframe, s, is secured to one side of thearm w, upon which said weight m is adapted to be moved.Therelativeconstructionot'saidframe and weight is shown in'Fig. 3.

The operation of my improvement is asvfollows, viz: Thehygrometricpostsa awillstand about vertical when there is about a normalamount otmoisture in the atmosphere. The position they are shown in inFig. lthat is,

- with their tops inclined toward the -trumpet and a consequentshrinking of the material composing said posts. The change to a moistatmosphere reverses their' positions by causing their ends to incline inan opposite direction,

and the said movements of posts a are communicated to the weight mthrough their connection with the latter by rod c, lever h, and rod `o.Thus when, by reason ofa dry atmosphere, the sliver draws the trumpet ounduly toward the front rolls of the machine, causing lever fw to beswung upward, the posts a gradually spring forward about as shown andmove weight m backward, thus counteracting said undue action ofthesliver upon the trumpet. The presence of much moisture in the atmosphereproduces the reverse el'ects upon the trumpetposts a, and weight m;hence said weight is so moved by variations ofthe humidity oftheatmosphere through its connections with posts a as to compensate for thevariable resistance f I do not here claim the construction of thehygrometric posts a, nor broadly their use, independently of that, shownfor governing or indicating purposes, nor any of the features claimed inmy applicationf'orhygrometers led on even date herewith.

What I claim as my invention isl. yThe combination, in a railway-headfor drawing and evening theslivers ofiibrous materials, of a trumpet andsupporting devices'v provided with a weightfbearing arm and a weight,substantially as described, and of appliances, substantially asdescribed, susceptible of dynamic action from atmospheric intlu ences,for moving said weight to different positions on said arm, substantiallyas set forth.

2. The combination, with the evening mechanism of a sliverdrawing frame,of a hygrometric trumpet-governor, substantially as described, adaptedto act independently of any variationin the weight ot the sliver passingthrough said trumpet, all as set forth.

3. 1n combination, the weightm, arm w,sup portingthe same, substantiallyas described, one or more hygrometric posts, a, the connecting-rods cand 0, and the lever h, substantially as set forth.v

GEORGE A. AYERS.

Witnesses:

, H. A. GHAPIN, R. F. HYD'E.

